HP EliteDesk 705 G1 Base Model Microtower PC Reference guide

Brand: HP

Model: EliteDesk 705 G1 Base Model Microtower PC

Type: Reference guide

This manual is also suitable for

Hardware Reference Guide

HP EliteDesk 705 G1 Microtower

Development Company, L.P.

Microsoft and Windows are U.S. registered

trademarks of the Microsoft group of

companies.

The information contained herein is subject

to change without notice. The only

warranties for HP products and services are

set forth in the express warranty statements

accompanying such products and services.

Nothing herein should be construed as

constituting an additional warranty. HP shall

not be liable for technical or editorial errors

or omissions contained herein.

First Edition: June 2014

Document part number: 762919-001

Product Notice

This guide describes features that are

common to most models. Some features

may not be available on your computer.

Not all features are available in all editions

of Windows 8. This computer may require

upgraded and/or separately purchased

hardware, drivers and/or software to take

full advantage of Windows 8 functionality.

See

http://www.microsoft.com for details.

This computer may require upgraded and/

or separately purchased hardware and/or a

DVD drive to install the Windows 7 software

and take full advantage of Windows 7

functionality. See

http://windows.microsoft.com/en-us/

windows7/get-know-windows-7 for details.

Software terms

By installing, copying, downloading, or

otherwise using any software product

preinstalled on this computer, you agree to

be bound by the terms of the HP End User

License Agreement (EULA). If you do not

accept these license terms, your sole

remedy is to return the entire unused

product (hardware and software) within 14

days for a refund subject to the refund

policy of your place of purchase.

For any further information or to request a

full refund of the computer, please contact

your local point of sale (the seller).

About This Book

This guide provides basic information for upgrading the HP EliteDesk Business PC.

WARNING! Text set off in this manner indicates that failure to follow directions could result in bodily

harm or loss of life.

CAUTION: Text set off in this manner indicates that failure to follow directions could result in

damage to equipment or loss of information.

NOTE: Text set off in this manner provides important supplemental information.

iii

iv About This Book

Table of contents

1 Product features ................................................................................................................................................ 1

Standard configuration features ........................................................................................................... 1

Front panel components ....................................................................................................................... 2

Rear panel components ....................................................................................................................... 3

Serial number location .......................................................................................................................... 4

2 Hardware upgrades .......................................................................................................................................... 5

Serviceability features .......................................................................................................................... 5

Warnings and cautions ......................................................................................................................... 5

Removing the computer access panel ................................................................................................. 6

Replacing the computer access panel ................................................................................................. 7

Removing the front bezel ..................................................................................................................... 8

Removing an optical drive bezel blank ................................................................................................. 9

Replacing the front bezel ...................................................................................................................... 9

System board connections ................................................................................................................. 10

Installing additional memory ............................................................................................................... 11

DIMMs ............................................................................................................................... 11

DDR3-SDRAM DIMMs ...................................................................................................... 11

Populating DIMM sockets .................................................................................................. 11

Installing DIMMs ................................................................................................................ 12

Removing or installing an expansion card .......................................................................................... 14

Drive positions .................................................................................................................................... 18

Installing and removing drives ............................................................................................................ 19

Removing a slim optical drive ............................................................................................ 20

Installing a slim optical drive .............................................................................................. 21

Removing a hard drive ....................................................................................................... 23

Installing a hard drive ......................................................................................................... 25

Installing a security lock ..................................................................................................................... 29

Cable lock .......................................................................................................................... 29

Padlock .............................................................................................................................. 29

HP Business PC Security Lock .......................................................................................... 30

Appendix A Battery replacement ....................................................................................................................... 34

Appendix B Electrostatic discharge ................................................................................................................... 37

Preventing electrostatic damage ........................................................................................................ 37

Grounding methods ............................................................................................................................ 37

Appendix C Computer operating guidelines, routine care and shipping preparation ......................................... 38

Computer operating guidelines and routine care ............................................................................... 38

Optical drive precautions .................................................................................................................... 39

Operation ........................................................................................................................... 39

Cleaning ............................................................................................................................. 39

Safety ................................................................................................................................. 39

Shipping preparation .......................................................................................................................... 39

Index ................................................................................................................................................................... 40

1 Product features

Standard configuration features

Features may vary depending on the model. For support assistance and to learn more about the

hardware and software installed on your computer model, run the HP Support Assistant utility.

Standard configuration features 1

Front panel components

Drive configuration may vary by model. Some models have a bezel blank covering the optical drive

bay.

1 Slim Optical Drive (optional) 6 SD Card Reader

2 Dual-State Power Button 7 Hard Drive Activity Light

3 USB 2.0 Port - Charging (black) 8 USB 2.0 Port (black)

4 USB 3.0 Ports (blue) 9 Microphone/Headphone Connector

5 Headphone Connector

NOTE: When a device is plugged into the Microphone/Headphone Connector, a dialog box will pop up asking if

you want to use the connector for a microphone Line-In device or a headphone. You can reconfigure the

connector at any time by double-clicking the Audio Manager icon in the Windows taskbar.

NOTE: The USB 2.0 Port - Charging also provides current to charge a device such as a Smart Phone. The

charging current is available whenever the power cord is plugged into the system, even when the system is off.

NOTE: The Power On Light is normally white when the power is on. If it is flashing red, there is a problem with

the computer and it is displaying a diagnostic code. Refer to the

Maintenance and Service Guide

to interpret the

code.

2 Chapter 1 Product features

Rear panel components

1 PS/2 Keyboard Connector (purple) 7 Power Cord Connector

USB 2.0 Ports (black) 8 PS/2 Mouse Connector (green)

DisplayPort Monitor Connectors 9 RJ-45 Network Connector

VGA Monitor Connector 10 Serial Connector

USB 3.0 Ports (blue) 11 Line-In Audio Connector (blue)

Line-Out Connector for powered audio

devices (green)

NOTE: An optional second serial port and an optional parallel port are available from HP.

When a device is plugged into the blue Line-In Audio Connector, a dialog box will pop up asking if you want to use

the connector for a line-in device or a microphone. You can reconfigure the connector at any time by double-

clicking the Audio Manager icon in the Windows taskbar.

When a graphics card is installed in one of the system board slots, the video connectors on the graphics card and/

or the integrated graphics on the system board may be used. The specific graphics card installed and software

configuration will determine the behavior.

The system board graphics can be disabled by changing settings in Computer Setup.

Rear panel components 3

Serial number location

Each computer has a unique serial number and a product ID number that are located on the exterior

of the computer. Keep these numbers available for use when contacting customer service for

assistance.

4 Chapter 1 Product features

2 Hardware upgrades

Serviceability features

The computer includes features that make it easy to upgrade and service. A Torx T15 or flathead

screwdriver is needed for many of the installation procedures described in this chapter.

Warnings and cautions

Before performing upgrades be sure to carefully read all of the applicable instructions, cautions, and

warnings in this guide.

WARNING! To reduce the risk of personal injury from electrical shock, hot surfaces, or fire:

Disconnect the power cord from the wall outlet and allow the internal system components to cool

before touching.

Do not plug telecommunications or telephone connectors into the network interface controller (NIC)

receptacles.

Do not disable the power cord grounding plug. The grounding plug is an important safety feature.

Plug the power cord in a grounded (earthed) outlet that is easily accessible at all times.

To reduce the risk of serious injury, read the

Safety & Comfort Guide

. It describes proper workstation,

setup, posture, and health and work habits for computer users, and provides important electrical and

mechanical safety information. This guide is located on the Web at

http://www.hp.com/ergo.

WARNING! Energized and moving parts inside.

Disconnect power to the equipment before removing the enclosure.

Replace and secure the enclosure before re-energizing the equipment.

CAUTION: Static electricity can damage the electrical components of the computer or optional

equipment. Before beginning these procedures, ensure that you are discharged of static electricity by

briefly touching a grounded metal object. See

Electrostatic discharge on page 37 for more

information.

When the computer is plugged into an AC power source, voltage is always applied to the system

board. You must disconnect the power cord from the power source before opening the computer to

prevent damage to internal components.

Serviceability features 5

Removing the computer access panel

To access internal components, you must remove the access panel:

1. Remove/disengage any security devices that prohibit opening the computer.

2. Remove all removable media, such as compact discs or USB flash drives, from the computer.

3. Turn off the computer properly through the operating system, then turn off any external devices.

4. Disconnect the power cord from the power outlet and disconnect any external devices.

CAUTION: Regardless of the power-on state, voltage is always present on the system board

as long as the system is plugged into an active AC outlet. You must disconnect the power cord

to avoid damage to the internal components of the computer.

5. Lift up on the access panel handle (1), slide the computer back approximately 12 mm (1/2 inch)

(2), and then lift the access panel off the computer (3).

6 Chapter 2 Hardware upgrades

Replacing the computer access panel

Align the tabs on the access panel with the slots on the chassis and set the access panel straight

down onto the chassis (1), and then slide the panel forward (2) until it locks into place.

Replacing the computer access panel 7

Removing the front bezel

1. Remove/disengage any security devices that prohibit opening the computer.

2. Remove all removable media, such as compact discs or USB flash drives, from the computer.

3. Turn off the computer properly through the operating system, then turn off any external devices.

4. Disconnect the power cord from the power outlet and disconnect any external devices.

CAUTION: Regardless of the power-on state, voltage is always present on the system board

as long as the system is plugged into an active AC outlet. You must disconnect the power cord

to avoid damage to the internal components of the computer.

5. Remove the computer access panel.

6. Lift up the three tabs on the side of the bezel (1), then rotate the bezel off the chassis (2).

8 Chapter 2 Hardware upgrades

Removing an optical drive bezel blank

On some models, there is a bezel blank covering the slim optical drive bay. Remove the bezel blank

before installing an optical drive. To remove the bezel blank:

1. Remove the access panel and front bezel.

2. To remove the bezel blank, press upward on the bottom tab and press downward on the top tab

on the right side of the blank (1), and then rotate the blank off the front of the bezel (2).

Replacing the front bezel

Insert the three hooks on the bottom edge of the bezel into the rectangular holes on the chassis (1)

then rotate the top side of the bezel onto the chassis (2) and snap it into place.

Removing an optical drive bezel blank 9

System board connections

Refer to the following illustration and table to identify the system board connectors for your model.

No. System Board Connector System Board Label Color Component

1 PCI Express x16 downshifted

to a x4

X4PCIEXP white Expansion Card

2 PCI Express x1 X1PCIEXP2 black Expansion Card

3 PCI Express x1 X1PCIEXP1 black Expansion Card

4 PCI Express x16 X16PCIEXP black Expansion Card

5 Parallel Port PAR black Optional Parallel Port

6 Serial Port COMB black Optional Second Serial Port

7 DIMM4 (Channel A) DIMM4 white Memory Module

8 DIMM3 (Channel A) DIMM3 black Memory Module

9 DIMM2 (Channel B) DIMM2 white Memory Module

10 DIMM1 (Channel B) DIMM1 black Memory Module

11 SATA 3.0 SATA2 light blue Any SATA Device other than the

Primary Hard Drive

12 SATA 3.0 SATA1 light blue Any SATA Device other than the

Primary Hard Drive

13 SATA 3.0 SATA0 dark blue Primary Hard Drive

14 Battery BAT black Battery

10 Chapter 2 Hardware upgrades

Installing additional memory

The computer comes with double data rate 3 synchronous dynamic random access memory (DDR3-

SDRAM) dual inline memory modules (DIMMs).

DIMMs

The memory sockets on the system board can be populated with up to four industry-standard DIMMs.

These memory sockets are populated with at least one preinstalled DIMM. To achieve the maximum

memory support, you can populate the system board with up to 32-GB of memory configured in a

high-performing dual channel mode.

DDR3-SDRAM DIMMs

For proper system operation, the DDR3-SDRAM DIMMs must be:

●

industry-standard 240-pin

●

unbuffered non-ECC PC3-12800 DDR3-1600 MHz-compliant

●

1.5 volt DDR3-SDRAM DIMMs

The DDR3-SDRAM DIMMs must also:

●

support CAS latency 11 DDR3 1600 MHz (11-11-11 timing)

●

contain the mandatory JEDEC SPD information

In addition, the computer supports:

●

512-Mbit, 1-Gbit, and 2-Gbit non-ECC memory technologies

●

single-sided and double-sided DIMMs

●

DIMMs constructed with x8 and x16 DDR devices; DIMMs constructed with x4 SDRAM are not

supported

NOTE: The system will not operate properly if you install unsupported DIMMs.

Populating DIMM sockets

There are four DIMM sockets on the system board, with two sockets per channel. The sockets are

labeled DIMM1, DIMM2, DIMM3, and DIMM4. Sockets DIMM1 and DIMM2 operate in memory

channel B. Sockets DIMM3 and DIMM4 operate in memory channel A.

The system will automatically operate in single channel mode, dual channel mode, or flex mode,

depending on how the DIMMs are installed.

NOTE: Single channel and unbalanced dual channel memory configurations will result in inferior

graphics performance.

●

The system will operate in single channel mode if the DIMM sockets are populated in one

channel only.

●

The system will operate in a higher-performing dual channel mode if the total memory capacity

of the DIMMs in Channel A is equal to the total memory capacity of the DIMMs in Channel B.

The technology and device width can vary between the channels. For example, if Channel A is

populated with two 1-GB DIMMs and Channel B is populated with one 2-GB DIMM, the system

will operate in dual channel mode.

Installing additional memory 11

●

The system will operate in flex mode if the total memory capacity of the DIMMs in Channel A is

not equal to the total memory capacity of the DIMMs in Channel B. In flex mode, the channel

populated with the least amount of memory describes the total amount of memory assigned to

dual channel and the remainder is assigned to single channel. For optimal speed, the channels

should be balanced so that the largest amount of memory is spread between the two channels.

If one channel will have more memory than the other, the larger amount should be assigned to

Channel A. For example, if you are populating the sockets with one 2-GB DIMM, and three 1-GB

DIMMs, Channel A should be populated with the 2-GB DIMM and one 1-GB DIMM, and Channel

B should be populated with the other two 1-GB DIMMs. With this configuration, 4-GB will run as

dual channel and 1-GB will run as single channel.

●

In any mode, the maximum operational speed is determined by the slowest DIMM in the system.

Installing DIMMs

CAUTION: You must disconnect the power cord and wait approximately 30 seconds for the power

to drain before adding or removing memory modules. Regardless of the power-on state, voltage is

always supplied to the memory modules as long as the computer is plugged into an active AC outlet.

Adding or removing memory modules while voltage is present may cause irreparable damage to the

memory modules or system board.

The memory module sockets have gold-plated metal contacts. When upgrading the memory, it is

important to use memory modules with gold-plated metal contacts to prevent corrosion and/or

oxidation resulting from having incompatible metals in contact with each other.

Static electricity can damage the electronic components of the computer or optional cards. Before

beginning these procedures, ensure that you are discharged of static electricity by briefly touching a

grounded metal object. For more information, refer to

Electrostatic discharge on page 37.

When handling a memory module, be careful not to touch any of the contacts. Doing so may damage

the module.

1. Remove/disengage any security devices that prohibit opening the computer.

2. Remove all removable media, such as compact discs or USB flash drives, from the computer.

3. Turn off the computer properly through the operating system, then turn off any external devices.

4. Disconnect the power cord from the power outlet and disconnect any external devices.

CAUTION: You must disconnect the power cord and wait approximately 30 seconds for the

power to drain before adding or removing memory modules. Regardless of the power-on state,

voltage is always supplied to the memory modules as long as the computer is plugged into an

active AC outlet. Adding or removing memory modules while voltage is present may cause

irreparable damage to the memory modules or system board.

5. Remove the computer access panel.

WARNING! To reduce risk of personal injury from hot surfaces, allow the internal system

components to cool before touching.

12 Chapter 2 Hardware upgrades

6. Open both latches of the memory module socket (1), and insert the memory module into the

socket (2).

NOTE: A memory module can be installed in only one way. Match the notch on the module

with the tab on the memory socket.

Populate the black DIMM sockets before the white DIMM sockets.

For maximum performance, populate the sockets so that the memory capacity is spread as

equally as possible between Channel A and Channel B. Refer to

Populating DIMM sockets

on page 11 for more information.

7. Push the module down into the socket, ensuring that the module is fully inserted and properly

seated. Make sure the latches are in the closed position (3).

8. Repeat steps 6 and 7 to install any additional modules.

9. Replace the computer access panel.

10. Reconnect the power cord and turn on the computer.

11. Lock any security devices that were disengaged when the access panel was removed.

The computer should automatically recognize the additional memory the next time you turn on the

computer.

Installing additional memory 13

Removing or installing an expansion card

The computer has two PCI Express x1 expansion slots, one PCI Express x16 expansion slot, and

one PCI Express x16 expansion slot that is downshifted to a x4 slot.

NOTE: You can install a PCI Express x1, x8, or x16 expansion card in the PCI Express x16 slot.

For dual graphics card configurations, the first (primary) card must be installed in the PCI Express

x16 slot that is NOT downshifted to a x4.

To remove, replace, or add an expansion card:

1. Remove/disengage any security devices that prohibit opening the computer.

2. Remove all removable media, such as compact discs or USB flash drives, from the computer.

3. Turn off the computer properly through the operating system, then turn off any external devices.

4. Disconnect the power cord from the power outlet and disconnect any external devices.

CAUTION: Regardless of the power-on state, voltage is always present on the system board

as long as the system is plugged into an active AC outlet. You must disconnect the power cord

to avoid damage to the internal components of the computer.

5. Remove the computer access panel.

6. Release the slot cover retention latch that secures the slot covers by lifting the tab on the latch

and rotating the latch to the open position.

7. Locate the correct vacant expansion socket on the system board and the corresponding

expansion slot on the back of the computer chassis.

8. Before installing an expansion card, remove the expansion slot cover or the existing expansion

card.

NOTE: Before removing an installed expansion card, disconnect any cables that may be

attached to the expansion card.

a. If you are installing an expansion card in a vacant socket, you must slide one of the

expansion slot covers up and out of the chassis or use a flatblade screwdriver to pry out

14 Chapter 2 Hardware upgrades

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HP EliteDesk 705 G1 Base Model Microtower PC Reference guide

Brand: HP

Model: EliteDesk 705 G1 Base Model Microtower PC

Type: Reference guide

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